Noosphere is synonyms of

(1) Environment

(2) Atmosphere

(3) Hydrosphere

(4) Stratosphere

When biosphere turns into human-dominated environment it is called

(1) Noosphere

(2) Troposphere

(3) Mesosphere

(4) Man sphere 

The living organisms on or around the earth constitute

(1) Biome

(2) Biosphere

(3) Community

(4) Biocoenosis

Biosphere refers to 

(1) Plants of the world

(2) Special plants

(3) Area occupied by living beings

(4) Plants of a particular area

What is the correct sequence of atmospheric layers starting from earth

(1) Stratosphere troposphere, mesosphere, thermosphere

(2) Troposphere, stratosphere, mesosphere, thermosphere

(3) Mesosphere, troposphere, stratosphere, thermosphere

(4) Thermosphere, mesosphere, stratosphere, troposphere

A biosphere is composed of 

1. Living organisms

2. Living organisms + Lithosphere

3. Living organisms + lithosphere + atmosphere

4. Living organisms + lithosphere + atmosphere + Hydrosphere

Which of the following is the non conventional source of energy

(1) Coal

(2) petroleum

(3) Electricity from nuclear power plants

(4) Solar radiations

The population of India is 15% of the world but its annual energy consumption is only

(1) 0.2%

(2) 2.0%

(3) 10%

(4) 25%

Petroleum resource is

(1) Renewable

(2) Non-renewable

(3) Synthetic & biodegradable

(4) Infinite & unconventional

The main aim of plant conservation is - 

(1) To conserve the necessary ecological activities and life-supporting systems

(2) To conserve species diversity and range of genetic material

(3) Both the above

(4) None of the above